I second that, i bought two pairs of htf 600's last week just because i was curious about some of the posts put up about these cans and these are insanely good value for the money, I was astounded actually, i originally bought these for my partner and daughter, but they were so good i have kept one pair and will be ordering another pair for my daughter lol.
Don't get me wrong, I own two pairs of Denon ah-d 5000's, one mark L modded and the other stock, i also own some beyer DT 770's so am not inexperienced with bassy cans as a reference, although not as polished as my other cans and 20 times cheaper, the htf 600's bass is excellent as is other parts of the spectrum. I must admit, most of the listening has been through an IMAC>Cambridge Dacmagic>Heed Canamp and they sound great, being low impedence they also sounded very good out of an Ipad/Ipod unamped, for how much they are, simply buy them, you can't go wrong.